MESON Chess Problem Database

Problem Display
PID: 145120 (7B/3R4/3nP3/P2kb1P1/4N1K1/1P6/3P1P2/7B w - - 0 1)

Clark, WA

Natal Mercury, 1915

(First published on Wed Nov 10 1915)

7B/3R4/3nP3/P2kb1P1/4N1K1/1P6/3P1P2/7B

#2

11 + 3

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rxd6#
    • 1...Kxe6
      • 2.Sc5#
    • 1...Ba1
      • 2.Rxd6#
    • 1...Bb2
      • 2.Rxd6#
    • 1...Bc3
      • 2.Rxd6#
    • 1...Bd4
      • 2.Rxd6#
  • Keys
    • 1.d4!
      • 1...Kxd4
        • 2.Rxd6#
      • 1...Kc6
        • 2.Sxd6#
      • 1...Kxe6
        • 2.Sc5#
      • 1...Bxd4
        • 2.Rxd6#
      • 1...Bxh8
        • 2.Rxd6#
      • 1...Bh2
        • 2.Sc5#
      • 1...Bg3
        • 2.Sc5#
      • 1...Bf4
        • 2.Sc5#
      • 1...Bf6
        • 2.Rxd6#
      • 1...Bg7
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • K(a);P-FLIGHT,P_SPINB(b)::R(J),XS(c)
    • K(a);N_SPINS(c),S_FLIGHT,XP(I)::S(E)
    • B(b);N_GUARD::R1(J),XS(c)
  • Actual
    • P(B);
    • Vars
      • K(a);P-FLIGHT,P_SPINB(b),XP(B)::R(J),XS(c)
      • K(a);N_SPINS(c),S_FLIGHT::B(A)+S(E),XS(c)
      • K(a);N_SPINS(c),S_FLIGHT,XP(I)::S(E)
      • B(b);N_GUARD,XP(B)::R1(J),XS(c)
      • B(b);N_GUARD,XB(K)::R1(J),XS(c)
      • B(b);::B(A)+S(E)
      • B(b);N_GUARD::R1(J),XS(c)
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